MXC - Inp. Inventory Counts - History - Requested Operation Fails

Scenario - When clicking View from Input Inventory Counts >>History  a Requested Operation Fails 'red toast' message is displayed

Steps:

1- Open MXC 

2-Change the store to 01919 in testing

3-Click Input Inventory Counts >>History 

4- Using the custom range enter a date range for 2 months 

5-Select View for any of the counts displayed

Defect: 

When View is selected the toast 'The requested operation failed.' is displayed

Noted from page: 

/Inventory/Count/Api/Review/GetReview?countType=0&entityIdCurrent=1041&isCountApplied=true&stockCountLocationId=4358635:1 Failed to load resource: the server responded with a status of 500 ()

NOTE - Please check out elmah logs. 

System.Collections.Generic.KeyNotFoundExceptionThe given key was not present in the dictionary.